Internal-combustion engines – Cooling – With cooling of additional parts or materials
Reexamination Certificate
2005-05-31
2005-05-31
Wolfe, Willis R. (Department: 3747)
Internal-combustion engines
Cooling
With cooling of additional parts or materials
C123S04182R
Reexamination Certificate
active
06899063
ABSTRACT:
A cylinder head for a multi-cylinder liquid-cooled internal combustion engine having a cooling chamber configuration adjacent to a fire deck which is divided by an intermediate deck essentially parallel to the fire deck into a lower cooling chamber next to the fire deck and an upper cooling chamber adjoining the lower one in the direction of the cylinder axis, the lower and upper cooling chamber communicating with each other via at least one first transfer opening, where at least one first transfer opening is provided in the area of an opening receiving a preferably centrally disposed fuel injection device, where at least one coolant inlet per cylinder (A,B,C), which is preferably located in the fire deck, opens into the lower cooling chamber, at least one coolant outlet departs from the upper cooling chamber, where a lower cooling chamber is associated with each cylinder (A,B,C), the lower cooling chambers of at least two adjacent cylinders (A,B,C) are essentially separated from each other by a partitioning wall, the coolant flow in the lower cooling chamber is essentially transverse to the cylinder head, and where the upper cooling chamber extends over at least two cylinders (A,B,C), the first transfer opening being disposed at a distance (a) from the opening receiving the fuel injection device, and the distance (a) between the openings having a defined minimum.
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Obermayer Bertram
Poeschl Robert
AVL List GmbH
Dykema Gossett PLLC
Harris Katrina B.
Wolfe Willis R.
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